JEE Main 2026 January 21 Shift 1 Physics Question Paper & Solutions Download PDF

Day 1 of the JEE Main 2026 Session 1 examination was conducted on 21 January 2026 by the National Testing Agency (NTA). Lakhs of students aiming for admission into BE and B.Tech programmes appeared for the exam across different centres. The jee main morning shift timings for Shift 1 were from 9:00 AM to 12:00 PM, and the exam was conducted smoothly.

As per official NTA guidelines, the JEE Main 2026 question paper consisted of 90 questions, out of which students had to attempt 75 questions. According to the marking scheme followed for the JEE Main Answer Key 2026, candidates are awarded 4 marks for every correct answer, while 1 mark is deducted for every incorrect MCQ due to negative marking. No marks are deducted for unattempted questions or numerical value questions.

The Physics section of JEE Main 2026 January 21 Shift 1 tested students on fundamental concepts, formula-based applications, and numerical problem-solving skills. This page provides the complete JEE Main 2026 January 21 Shift 1 Physics Question Paper with detailed solutions, carefully prepared and reviewed by experienced Aakash faculty.

These solutions are fully aligned with the official JEE Main 2026 answer and JEE Main answer key, making them highly reliable for post-exam analysis.

JEE Main 2026 January 21 Morning & Evening  Shifts 

JEE Mains 2026 shift 1 ( Morning Shift ) Difficulty Level & Exam Analysis LIVE 

• JEE Main 2026 Session 1 January 21 Shift 1 Exam Analysis LIVE UPDATES- Difficulty Level, Paper Analysis & Solutions
• जेईई मेन 2026 जनवरी 21 शिफ्ट 1 एग्जाम एनालिसिस

JEE Main Answer Key 2026 Session 1 and Solutions by Aakash for 21, 22, 23, 24 and 28 January

Download JEE Main 2026 Papers with Answer Key: Session 1 (January Attempt)

Students looking to revise or analyse their performance can Download JEE Main 2026 Papers with Answer Key: Session 1 (January Attempt) using the PDF link below.

This PDF is part of the official JEE Main 2026 Question Papers with Solutions – Free PDF collection and includes:

Why Refer to JEE Main January 2026 (Session 1) Question Papers PDFs by Aakash?

Referring to JEE Main January 2026 (Session 1) Question Papers PDFs prepared by Aakash offers several advantages, especially for Physics.

Key benefits include:

How JEE Main Answer Key 2026 Helps in Physics Analysis

JEE Main Answer Key 2026 plays an important role in analysing the Physics paper. By comparing their responses with the official JEE Main answer key, students can:

Benefits of JEE Main Answer Key (Physics)

Some major Benefits of JEE Main Answer Key for Physics include:

How to Calculate Your Score Using the Answer Key (Physics)

Students often ask How to Calculate Your Score Using the Answer Key after the exam. For Physics, the process is simple:

1. Download the official JEE Main Answer Key 2026
2. Match your Physics responses with the JEE Main 2026 answer
3. Add +4 marks for each correct answer
4. Deduct −1 mark for each incorrect MCQ
5. No negative marking for numerical questions

This gives a close estimate of your Physics score before results are announced.

How to Download the NTA JEE Main Answer Key 2026

To verify answers correctly, students should know How to Download the NTA JEE Main Answer Key 2026:

• Visit the official NTA website
• Click on the JEE Main Answer Key 2026 link
• Login using application number and date of birth
• Download the JEE Main answer key PDF

Always use the official JEE Main Answer Key 2026 for reliable score calculation.

Steps to Challenge JEE Main 2026 Answer Key (Physics)

If a student finds an error in a Physics answer, they can follow the official Steps to Challenge JEE Main 2026 Answer Key:

• Login to the NTA portal
• Select the Physics question to challenge
• Upload valid supporting explanation
• Pay the challenge fee

This ensures fairness in the final JEE Main 2026 answer released by NTA.

Related JEE Main 2026 Answer key

Students can also check other subject papers from the same shift:

Together, these form the complete JEE Main January 2026 (Session 1) Question Papers PDFs set.

Frequently Asked Questions (FAQs)

Q1. How should I revise Physics using this paper after the exam?

Focus on questions you got wrong. Re-solve them using JEE Main 2026 January Paper Solutions. Note important formulas, shortcuts, and frequently repeated topics.

Q2. Can solving this Physics paper help in future JEE Main shifts?

Yes. It helps you understand question framing, difficulty level, and important chapters, which improves performance in later shifts.

Q3. How can I use these solutions to improve problem-solving speed?

Compare your approach with the expert method. Learn faster calculations and practice similar numerical problems using JEE Mains 2026 Solved Question Paper PDFs.

Q4. Are these Physics solutions useful for JEE Advanced preparation?

Yes. Strong conceptual questions in this paper help build a solid foundation for JEE Advanced.

Q5. How do I identify my weak areas from this paper?

Analyse mistakes chapter-wise. Repeated errors in one topic indicate weakness. Focus on theory, formulas, and numerical accuracy in that area.